Village buildings, and other structures that are spread over a wide area, can often generate floating.

Vanilla Minecraft generates padding using a pre-calculated noise table, but it seems like this was written for current vanilla world gen in mind, and simply adapting it for Beta world gen will not work, not without obvious artifacts. Not sure how to go about fixing it..

Partially resolved for a little while now, padding is just generated underneath structures. Clunky, but it works.